def _check_status(self):
bail = 0
# Check to see if the hotplug lock file exists. If so, bail for now.
hotstat = PROC.status_from_name('hotplug')
if hotstat.state != PROC.StatusEnum.DOESNOTEXIST:
# Looks like it exists. Bail for now.
bail = 1
if not bail:
_dstatus = self._do_check()
if _dstatus != self._drives:
# If it has changed, wait a couple of seconds, and
# make sure we aren't stomping on hotplug.
time.sleep(2)
#
hotstat = PROC.status_from_name('hotplug')
if hotstat.state != PROC.StatusEnum.DOESNOTEXIST:
# Looks like it exists. Bail for now.
bail = 1
if bail:
mstr = 'hotplug lock file exists. Not checking USB status. '
mstr += 'Got pid of %d.' % hotstat.pid
msglog.log('USBStorage', msglog.types.WARN, mstr)
return 1
#
if _dstatus and (_dstatus != self._drives):
print 'Drive status has changed to %s.' % str(_dstatus)
# Since drive status has changed, check for the hotplug lock file
# again. This should guard against the case where the kernel
# detects the device and starts to run hotplug but this routine
# gets in first.
hotstat = PROC.status_from_name('hotplug')
if hotstat.state != PROC.StatusEnum.DOESNOTEXIST:
mstr = 'hotplug lock file exists now. Not checking USB status. '
mstr += 'Got pid of %d.' % hotstat.pid
msglog.log('USBStorage', msglog.types.WARN, mstr)
return 1
for x in _dstatus:
if not x in self._drives:
self._add_services_node(x)
self._add_device_node(x)
self._add_device_event(x)
for x in self._drives:
if not x in _dstatus:
self._remove_services_node(x)
self._remove_device_node(x)
self._remove_device_event(x)
self._drives = _dstatus
return 0
def is_running():
# Check this process.
if (__system_dict['run_func'] != None):
return 1
# Check for another process.
if (process.status_from_name('broadway').state !=
process.StatusEnum.DOESNOTEXIST):
return 1
return 0